In a case where witnesses are protected to hide their identity, the rules require that they testify from an enclosed dock but their voices can be heard and recognised.
Their recorded testimony is detracted and their voices may be convoluted.
They also use pseudo-names for security purposes.
The trial of Governor Mike Sonko in the Sh14 million graft case against him has begun 'in camera' before Senior Principal Magistrate Peter Ooko.
Mr Ooko directed the case to proceed 'in camera' after State Prosecutor James Kihara said he had lined up two protected witnesses for Tuesday’s session.